Fan housing



FIG. 1 is a top perspective view of a fan housing showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof, the left side being a mirror image thereof; and,

FIG. 5 is a rear elevation view thereof.

The broken line showing of environmental structure in FIGS. 1-5 is for illustrative purposes only and forms no part of the claimed design. The bottom view forms no part of the claimed design. 

The ornamental design for a fan housing, as shown and described. 